Physical property changes of soil due to long-term irrigation and fertilization
1994
Novakova, K. (Vyskumny Ustav Zavlahoveho Hospodarstva, Bratislava (Slovak Republic))
The influence of long-lasting irrigation and fertilization on physical properties of carbonate black soil was investigated. The results achieved were processed by analysis of variance. The irrigation increased the values of bulk density from 1.38 to 1.45 g.cm** (-1) in average and decreased the content of particles smaller than 0.01 mm from 54.10 to 50.30 % on average. The values of soil hydrologic coefficients due to irrigation changed neither considerably nor clearly. No movement of clay particles from upper horizons downwards due to long-lasting irrigation was found. Long-lasting fertilization did not bring about statistically significant changes of soil physical properties.
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